Question

18x1/6-1x11/14-2/15x2x6/7 вычислите значение выражения

Answer 1

$18 \times \frac{1}{6} = 3$
$1 \times \frac{11}{14} = \frac{11}{14}$
$\frac{2}{15} \times 2 = \frac{4}{15} \times \frac{6}{7} = \frac{8}{35}$
$3 - \frac{11}{14} = 2 \frac{14}{14} - \frac{11}{14} = 2 \frac{3}{14}$
$2 \frac{3}{14} - \frac{8}{35} = 2 \frac{15}{70} - \frac{16}{70} = \\ 1 \frac{85}{70} - \frac{16}{70} = 1 \frac{69}{70}$
Ответ: 1 69/70

Answer 2

18x1/6-1x11/14-2/15x2x6/7
1)18x1/6=3
2)1x11/14=11/14
3)2/15x2=4/15
4)4/15×6/7=24/105=8/35
5)3-11/14=2 3/14
6)2 3/14-8/35=31/14-8/35=155/70-16/70=139/70=1 69/70